In diving a depth of 735m, an elephant seal also moves 600m due east of his starting point. What is the magnitude of the seal's displacement

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  1. Draw a diagram. Seal dives 735m down, ends up 600m east. So, making the ocean the top leg, draw a horizontal leg of 600, and a vertical leg of 735. Now, the final displacement is just the length of the hypotenuse.

    d = sqrt(735^2 + 600^2) = 949m

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